Comparison

Mandel vs FractalEcho

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mandel

Explore the intricate beauty of the Mandelbrot set with this educational app. Zoom into fractal patterns, adjust rendering parameters, and choose from vibrant color themes. Learn about the mathematical and historical context behind this fascinating fractal.

Highlights
  • Render Mandelbrot set snapshots
  • Zoom functionality
  • Adjust iteration count
  • Manipulate render scale
  • Four colorful themes
  • Mathematical background information
  • Open-source code
Read full description

Render beautiful snapshots of the well-known Mandelbrot set on your iOS device! This OpenGL-ES-based educational app has been developed as part of the 'Multimedia' lecture at Freiberg University of Mining and Technology. It allows to zoom into the Mandelbrot set, manipulate iteration count and render scale and choose one of four colorful themes: - Fire - Ice - Ash - Psychedelic Further details about the mathematical and historical background as well as implementation aspects are included. The source code of Mandel-GL has been released under the Apache License 2.0.

About

FractalEcho

Explore the infinite complexity of fractals with stunning visuals and unparalleled depth. This app offers advanced search capabilities, customization options, and educational insights into mathematical concepts. Share your discoveries and learn through an intuitive interface.

Highlights
  • Unrivaled search depth and resolution
  • Mandelbrot and Julia Set exploration
  • Animated colors and dynamic palettes
  • Calculates fractal border length and area
  • Community gallery and sharing
  • In-app tutorial
Features
Read full description

Discover the mesmerizing world of fractals with FractalEcho, a powerful app that brings stunning visuals through virtually unlimited search capabilities to your fingertips. Explore intricate patterns that were once limited to supercomputers now accessible on your device. Unrivaled Search Depth and Resolution: FractalEcho enables you to explore fractals at up to 1,000,000,000 iterations and resolutions of up to 1e-1100. Imagine one billion iteration searches at resolutions of over one thousand digits of accuracy! This level of detail enables you to uncover previously hidden depths and push beyond the boundaries previously thought possible. FractalEcho: Where Mathematical Precision Meets Artistic Wonder Unlock the captivating world of fractals with FractalEcho – a powerful and intuitive app that brings the beauty of infinite complexity to your fingertips. Explore intricate patterns, hidden depths, and breathtaking visuals previously confined to high-end computing, now accessible on your device. Unrivaled Depth & Resolution: Experience virtually unlimited fractal generation like never before! FractalEcho enables fractal exploration at up to 1,000,000,000 iterations with a stunning 1e-1100 resolution – far exceeding the capabilities of other apps. Discover fractals never before seen to push beyond the boundaries of visual exploration. Utilizing advanced real-time algorithms, FractalEcho delivers unparalleled resolutions. Explore & Customize: Delve into Mandelbrot and Julia Sets, bringing them to life with animated colors, dynamic color palettes, and precise control over search depth, zoom levels, and color rates of change. Experiment endlessly to discover stunning new forms. A Unique Educational Tool: FractalEcho uniquely calculates both the border length and area of the fractal at any given iteration level, visually demonstrating the fascinating concept of an infinite boundary contained within a finite space – a core principle of fractals. Community & Sharing: Discover a vibrant gallery showcasing stunning fractals uncovered by other users. Save your favorite discoveries with bookmarks and personal notes. Share your own artistic discoveries with the world – export high-resolution graphics and fractal data for others to enjoy. Easy to Use: An in-app tutorial guides you through FractalEcho’s powerful features, making fractal exploration accessible to everyone. Whether you're a math enthusiast, an artist, or simply curious about the fractal universe, FractalEcho offers something for you. To illustrate the extreme resolution FractalEcho achieves, consider a comparison between two extremes: the most distant known galaxy (JADES-GS-z14-0) estimated to be 33.6 billion (33.6e+9) light years away, and an electron within an atom having an estimated diameter of about 5.636e-15 meters. The electron diameter is about 1.78e-41 times the distance to the farthest known galaxy. This is a number with 41 digits after the decimal point. FractalEcho’s resolution of 1e-1100 is over 1e1050 times more accurate than this comparison. To put it another way, if we measured the distance to the farthest known galaxy in units of electron diameters, FractalEcho's calculations would still be 1e1050 times more accurate. To represent FractalEcho’s accuracy in writing would require a decimal place followed by 1,100 zeros before the first non zero digit ie: 0.00000000…..1. Perfect for math enthusiasts and artists! Download FractalEcho and begin your journey into the infinite beauty of fractals! Visit https://FractalEcho.com to learn more. Some features require in-app purchases that can be shared across all your Macs, iPhones, and iPads. View our on-line gallery at: https://data.bluestonepond.com/FrE/FrE_Action/FrE_Gallery.php View our privacy policy at: https://fractalecho.com/FractalEchoPP/FrE_PrivacyPolicy.html View our terms of service policy at: https://fractalecho.com/FractalEchoPP/FrE_TermsOfUse.html

Screenshots

Mandel3 screens
FractalEcho4 screens

Verdict

The call

The clearest difference is rating: FractalEcho at 3.9 against Mandel's 3.2. FractalEcho also leads on update cadence (fortnightly vs every 62 months). Mandel's advantage is in-app purchases (none vs 3) and review sentiment (100% vs 80%). On price, ratings volume, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. FractalEcho sells 3 in-app purchases, starting at $1.99 per month. Mandel asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

FractalEcho holds the better App Store score, 3.9 against 3.2. Both are backed by a comparable volume of ratings — 5 and 10 respectively. Written reviews complicate that: 100% of Mandel's written reviews are positive against 80% of FractalEcho's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Mandel ships an update every 62 months, FractalEcho fortnightly. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard6 real differences · 4 level
Mandel versus FractalEcho: the parameters behind the verdict, then further details
ParameterMandelFractalEcho
PriceFreeFree
Rating3.2 (5 ratings)3.9 (10 ratings) — better
Positive reviews100.0% of reviews — better80.0% of reviews
Number of ratings510 — better
Update frequencyEvery 62 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS12.0 — better17.6
Further details — not scored
Size8 MB138 MB
Age rating4+4+
DeveloperTechnische Universitaet Bergakademie FreibergBluestone Pond

Customer experience

Mandel

All ratings5 ratings
Positive60.0%
Neutral0.0%
Negative40.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

FractalEcho

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews5 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

In-app purchases

None

Mandel

No in-app purchases

3 purchases

FractalEcho

Subscriptions2
  • FractalEcho Pro monthly$1.991 Month
  • FractalEcho Pro Yearly3 Days trial$14.991 Year
One-time1
  • FractalEcho Pro$24.99

Questions

Is Mandel free?
Mandel is free to download, with no in-app purchases.
Is FractalEcho free?
FractalEcho is free to download, with in-app purchases available.
Which has better reviews, Mandel or FractalEcho?
FractalEcho is rated higher. Mandel averages 3.2 out of 5 from 5 ratings, while FractalEcho averages 3.9 from 10 ratings.
Do Mandel or FractalEcho have ads?
Neither Mandel nor FractalEcho shows ads.
Which is updated more often, Mandel or FractalEcho?
Mandel ships an update every 62 months, and FractalEcho fortnightly. Most recently, Mandel was updated on November 2, 2026 and FractalEcho on November 5, 2026.

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